(THIS ITEM IS ON PRE ORDER AND CAN TAKE FROM DAYS TO WEEKS TO SHIP) Our titanium bolts are titanium alloy grade, we are one of the cheapest in the market with our titanium because we prioritize our customers bank accounts over a large profit. These bolts are also sick and will definitely make any bike look way nicer. These bolts will work on your prickly riser, but you have to select which rise you have